package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo1 {
    public static void main(String[] args) throws Exception {
        //加载驱动
        Class.forName("com.mysql.cj.jdbc.Driver");
        //使用驱动管理器（DriverManager），使用上面加载的驱动与数据库建立连接
        Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root","root");
        System.out.println("与数据库建立连接");
        //创建语句对象
        Statement statement = connection.createStatement();
        String sql ="create table IF NOT EXISTS userinfo (" +
                "    id int primary key auto_increment," +
                "    username varchar(30)," +
                "    password varchar(30)," +
                "    nickname varchar(30)," +
                "    age int (3)" +
                ")";
        statement.execute(sql);
        connection.close();
        System.out.println("创建表完毕！");

    }

}
